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            <td width="10%" class="headerItem">Current view:</td>
            <td width="10%" class="headerValue"><a href="../../../../../../../../../index.html">top level</a> - <a href="index.html">core/contracts/protocol/configuration/src/core/contracts/protocol/configuration</a> - PriceOracleSentinel.sol<span style="font-size: 80%;"> (source / <a href="PriceOracleSentinel.sol.func-c.html">functions</a>)</span></td>
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            <td width="5%" class="headerCovTableHead">Coverage</td>
            <td width="5%" class="headerCovTableHead" title="Covered + Uncovered code">Total</td>
            <td width="5%" class="headerCovTableHead" title="Exercised code only">Hit</td>
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            <td class="headerItem">Test:</td>
            <td class="headerValue">lcov.info.p</td>
            <td></td>
            <td class="headerItem">Lines:</td>
            <td class="headerCovTableEntryHi">100.0&nbsp;%</td>
            <td class="headerCovTableEntry">10</td>
            <td class="headerCovTableEntry">10</td>
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            <td class="headerItem">Test Date:</td>
            <td class="headerValue">2024-04-09 14:12:28</td>
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            <td class="headerItem">Functions:</td>
            <td class="headerCovTableEntryHi">100.0&nbsp;%</td>
            <td class="headerCovTableEntry">7</td>
            <td class="headerCovTableEntry">7</td>
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            <td class="headerItem">Branches:</td>
            <td class="headerCovTableEntryHi">-</td>
            <td class="headerCovTableEntry">0</td>
            <td class="headerCovTableEntry">0</td>
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<pre class="sourceHeading">             Branch data     Line data    Source code</pre>
<pre class="source">
<span id="L1"><span class="lineNum">       1</span>                 :             : // SPDX-License-Identifier: BUSL-1.1</span>
<span id="L2"><span class="lineNum">       2</span>                 :             : pragma solidity ^0.8.10;</span>
<span id="L3"><span class="lineNum">       3</span>                 :             : </span>
<span id="L4"><span class="lineNum">       4</span>                 :             : import {Errors} from '../libraries/helpers/Errors.sol';</span>
<span id="L5"><span class="lineNum">       5</span>                 :             : import {IPoolAddressesProvider} from '../../interfaces/IPoolAddressesProvider.sol';</span>
<span id="L6"><span class="lineNum">       6</span>                 :             : import {IPriceOracleSentinel} from '../../interfaces/IPriceOracleSentinel.sol';</span>
<span id="L7"><span class="lineNum">       7</span>                 :             : import {ISequencerOracle} from '../../interfaces/ISequencerOracle.sol';</span>
<span id="L8"><span class="lineNum">       8</span>                 :             : import {IACLManager} from '../../interfaces/IACLManager.sol';</span>
<span id="L9"><span class="lineNum">       9</span>                 :             : </span>
<span id="L10"><span class="lineNum">      10</span>                 :             : /**</span>
<span id="L11"><span class="lineNum">      11</span>                 :             :  * @title PriceOracleSentinel</span>
<span id="L12"><span class="lineNum">      12</span>                 :             :  * @author Aave</span>
<span id="L13"><span class="lineNum">      13</span>                 :             :  * @notice It validates if operations are allowed depending on the PriceOracle health.</span>
<span id="L14"><span class="lineNum">      14</span>                 :             :  * @dev Once the PriceOracle gets up after an outage/downtime, users can make their positions healthy during a grace</span>
<span id="L15"><span class="lineNum">      15</span>                 :             :  *  period. So the PriceOracle is considered completely up once its up and the grace period passed.</span>
<span id="L16"><span class="lineNum">      16</span>                 :             :  */</span>
<span id="L17"><span class="lineNum">      17</span>                 :             : contract PriceOracleSentinel is IPriceOracleSentinel {</span>
<span id="L18"><span class="lineNum">      18</span>                 :             :   /**</span>
<span id="L19"><span class="lineNum">      19</span>                 :             :    * @dev Only pool admin can call functions marked by this modifier.</span>
<span id="L20"><span class="lineNum">      20</span>                 :             :    */</span>
<span id="L21"><span class="lineNum">      21</span>                 :             :   modifier onlyPoolAdmin() {</span>
<span id="L22"><span class="lineNum">      22</span>                 :             :     IACLManager aclManager = IACLManager(ADDRESSES_PROVIDER.getACLManager());</span>
<span id="L23"><span class="lineNum">      23</span>                 :             :     require(aclManager.isPoolAdmin(msg.sender), Errors.CALLER_NOT_POOL_ADMIN);</span>
<span id="L24"><span class="lineNum">      24</span>                 :             :     _;</span>
<span id="L25"><span class="lineNum">      25</span>                 :             :   }</span>
<span id="L26"><span class="lineNum">      26</span>                 :             : </span>
<span id="L27"><span class="lineNum">      27</span>                 :             :   /**</span>
<span id="L28"><span class="lineNum">      28</span>                 :             :    * @dev Only risk or pool admin can call functions marked by this modifier.</span>
<span id="L29"><span class="lineNum">      29</span>                 :             :    */</span>
<span id="L30"><span class="lineNum">      30</span>                 :             :   modifier onlyRiskOrPoolAdmins() {</span>
<span id="L31"><span class="lineNum">      31</span>                 :             :     IACLManager aclManager = IACLManager(ADDRESSES_PROVIDER.getACLManager());</span>
<span id="L32"><span class="lineNum">      32</span>                 :             :     require(</span>
<span id="L33"><span class="lineNum">      33</span>                 :             :       aclManager.isRiskAdmin(msg.sender) || aclManager.isPoolAdmin(msg.sender),</span>
<span id="L34"><span class="lineNum">      34</span>                 :             :       Errors.CALLER_NOT_RISK_OR_POOL_ADMIN</span>
<span id="L35"><span class="lineNum">      35</span>                 :             :     );</span>
<span id="L36"><span class="lineNum">      36</span>                 :             :     _;</span>
<span id="L37"><span class="lineNum">      37</span>                 :             :   }</span>
<span id="L38"><span class="lineNum">      38</span>                 :             : </span>
<span id="L39"><span class="lineNum">      39</span>                 :             :   IPoolAddressesProvider public immutable override ADDRESSES_PROVIDER;</span>
<span id="L40"><span class="lineNum">      40</span>                 :             : </span>
<span id="L41"><span class="lineNum">      41</span>                 :             :   ISequencerOracle internal _sequencerOracle;</span>
<span id="L42"><span class="lineNum">      42</span>                 :             : </span>
<span id="L43"><span class="lineNum">      43</span>                 :             :   uint256 internal _gracePeriod;</span>
<span id="L44"><span class="lineNum">      44</span>                 :             : </span>
<span id="L45"><span class="lineNum">      45</span>                 :             :   /**</span>
<span id="L46"><span class="lineNum">      46</span>                 :             :    * @dev Constructor</span>
<span id="L47"><span class="lineNum">      47</span>                 :             :    * @param provider The address of the PoolAddressesProvider</span>
<span id="L48"><span class="lineNum">      48</span>                 :             :    * @param oracle The address of the SequencerOracle</span>
<span id="L49"><span class="lineNum">      49</span>                 :             :    * @param gracePeriod The duration of the grace period in seconds</span>
<span id="L50"><span class="lineNum">      50</span>                 :             :    */</span>
<span id="L51"><span class="lineNum">      51</span>                 :             :   constructor(IPoolAddressesProvider provider, ISequencerOracle oracle, uint256 gracePeriod) {</span>
<span id="L52"><span class="lineNum">      52</span>                 :             :     ADDRESSES_PROVIDER = provider;</span>
<span id="L53"><span class="lineNum">      53</span>                 :             :     _sequencerOracle = oracle;</span>
<span id="L54"><span class="lineNum">      54</span>                 :             :     _gracePeriod = gracePeriod;</span>
<span id="L55"><span class="lineNum">      55</span>                 :             :   }</span>
<span id="L56"><span class="lineNum">      56</span>                 :             : </span>
<span id="L57"><span class="lineNum">      57</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L58"><span class="lineNum">      58</span>                 :<span class="tlaGNC tlaBgGNC">           5 :   function isBorrowAllowed() public view override returns (bool) {</span></span>
<span id="L59"><span class="lineNum">      59</span>                 :<span class="tlaGNC">          15 :     return _isUpAndGracePeriodPassed();</span></span>
<span id="L60"><span class="lineNum">      60</span>                 :             :   }</span>
<span id="L61"><span class="lineNum">      61</span>                 :             : </span>
<span id="L62"><span class="lineNum">      62</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L63"><span class="lineNum">      63</span>                 :<span class="tlaGNC">           5 :   function isLiquidationAllowed() public view override returns (bool) {</span></span>
<span id="L64"><span class="lineNum">      64</span>                 :<span class="tlaGNC">          15 :     return _isUpAndGracePeriodPassed();</span></span>
<span id="L65"><span class="lineNum">      65</span>                 :             :   }</span>
<span id="L66"><span class="lineNum">      66</span>                 :             : </span>
<span id="L67"><span class="lineNum">      67</span>                 :             :   /**</span>
<span id="L68"><span class="lineNum">      68</span>                 :             :    * @notice Checks the sequencer oracle is healthy: is up and grace period passed.</span>
<span id="L69"><span class="lineNum">      69</span>                 :             :    * @return True if the SequencerOracle is up and the grace period passed, false otherwise</span>
<span id="L70"><span class="lineNum">      70</span>                 :             :    */</span>
<span id="L71"><span class="lineNum">      71</span>                 :<span class="tlaGNC">          10 :   function _isUpAndGracePeriodPassed() internal view returns (bool) {</span></span>
<span id="L72"><span class="lineNum">      72</span>                 :<span class="tlaGNC">          30 :     (, int256 answer, uint256 startedAt, , ) = _sequencerOracle.latestRoundData();</span></span>
<span id="L73"><span class="lineNum">      73</span>                 :<span class="tlaGNC">          48 :     return answer == 0 &amp;&amp; block.timestamp - startedAt &gt; _gracePeriod;</span></span>
<span id="L74"><span class="lineNum">      74</span>                 :             :   }</span>
<span id="L75"><span class="lineNum">      75</span>                 :             : </span>
<span id="L76"><span class="lineNum">      76</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L77"><span class="lineNum">      77</span>                 :<span class="tlaGNC">           2 :   function setSequencerOracle(address newSequencerOracle) public onlyPoolAdmin {</span></span>
<span id="L78"><span class="lineNum">      78</span>                 :<span class="tlaGNC">           2 :     _sequencerOracle = ISequencerOracle(newSequencerOracle);</span></span>
<span id="L79"><span class="lineNum">      79</span>                 :<span class="tlaGNC">           2 :     emit SequencerOracleUpdated(newSequencerOracle);</span></span>
<span id="L80"><span class="lineNum">      80</span>                 :             :   }</span>
<span id="L81"><span class="lineNum">      81</span>                 :             : </span>
<span id="L82"><span class="lineNum">      82</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L83"><span class="lineNum">      83</span>                 :<span class="tlaGNC">           2 :   function setGracePeriod(uint256 newGracePeriod) public onlyRiskOrPoolAdmins {</span></span>
<span id="L84"><span class="lineNum">      84</span>                 :<span class="tlaGNC">           2 :     _gracePeriod = newGracePeriod;</span></span>
<span id="L85"><span class="lineNum">      85</span>                 :<span class="tlaGNC">           2 :     emit GracePeriodUpdated(newGracePeriod);</span></span>
<span id="L86"><span class="lineNum">      86</span>                 :             :   }</span>
<span id="L87"><span class="lineNum">      87</span>                 :             : </span>
<span id="L88"><span class="lineNum">      88</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L89"><span class="lineNum">      89</span>                 :<span class="tlaGNC">           1 :   function getSequencerOracle() public view returns (address) {</span></span>
<span id="L90"><span class="lineNum">      90</span>                 :<span class="tlaGNC">           3 :     return address(_sequencerOracle);</span></span>
<span id="L91"><span class="lineNum">      91</span>                 :             :   }</span>
<span id="L92"><span class="lineNum">      92</span>                 :             : </span>
<span id="L93"><span class="lineNum">      93</span>                 :             :   /// @inheritdoc IPriceOracleSentinel</span>
<span id="L94"><span class="lineNum">      94</span>                 :<span class="tlaGNC">           1 :   function getGracePeriod() public view returns (uint256) {</span></span>
<span id="L95"><span class="lineNum">      95</span>                 :<span class="tlaGNC">           2 :     return _gracePeriod;</span></span>
<span id="L96"><span class="lineNum">      96</span>                 :             :   }</span>
<span id="L97"><span class="lineNum">      97</span>                 :             : }</span>
        </pre>
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